On Thursday, May 13, President Joe Biden tweeted about the CDC's new mask guidelines in the United States.

"After a year of hard work and so much sacrifice, the rule is now simple: get vaccinated or wear a mask until you do," Biden wrote.

The Centers for Disease Control and Prevention had updated its guidelines on the same day, outlining what vaccinated and unvaccinated Americans can do safely with and without masks.

For the most part, fully vaccinated people in the country will now be allowed to resume normal activities without masks or physical distancing. This is with the exception of places like businesses and workplaces that fall under specific health regulations.

Biden said in another tweet that these amended guidelines were "made possible by the extraordinary success we've had in vaccinating so many Americans, so quickly." In Canada, there are currently no health orders that draw a distinction between vaccinated and unvaccinated Canadians.